CSB EVX12340 12V 34Ah Sealed Lead-Acid Battery

What is the CSB EVX12340?

The CSB EVX12340 is a 12 V, 34 Ah valve-regulated lead-acid (VRLA) battery with absorbent glass mat (AGM) construction from the CSB EVX series (High Cycle). It is sealed and maintenance-free: it never needs water.

CSB designs this series for e-mobility and deep cycling.

CSB lists this part as a non-stock item, so availability and minimum order quantity are confirmed with your quote.

What are the specifications of the CSB EVX12340?

Figures published by CSB in the EVX12340 datasheet (2026 edition), with the CSB price list attributes marked:

Nominal voltage: 12 V
Nominal capacity (CSB price list): 34 Ah
Rated capacity, 20-hour rate to 1.75 V/cell, 25 °C: 34.4 Ah
Rated capacity, 8-hour rate to 1.75 V/cell, 25 °C: 27.68 Ah
Maximum charge current: 10.2 A
Maximum discharge current: 400 A
Internal resistance: approx. 9.2 mΩ
Terminal: B5 terminal for M6 bolt
Container: ABS, UL 94-HB
Weight, approx.: 23.74 lb (10.77 kg)
Dimensions (L x W x H): 195.6 x 130 x 178.3 mm (7.7 x 5.12 x 7.02 in)
Case / group size (CSB price list): U1
Design life: 400 cycles at 100% depth of discharge, 25 °C; 1800 cycles at 30% depth of discharge, 25 °C
Discharge temperature range: -15 to 50 °C
Equalize / cycle charging voltage: 14.4 – 15.0 V per battery at 25 °C (77 °F)
Standards (CSB datasheet): IEC 60254-1:2005 / IEC 60254-2:2008, UL1973 Listed (MH66728) and UL1989 Recognized (MH14533)

How do I request a quote for the CSB EVX12340?

Request a quote by the part number EVX12340. Tell us the quantity you need and, where CSB lists more than one terminal or case option, which one. We confirm price, availability and lead time with the quote.